Design for driving guidelines
Introduction
TomTom has done extensive research on how drivers interact with in-dash navigation systems. Here are some best practices that designers should know when designing for drivers.

Easy to interpret UI
The UI presented to drivers should be easy to interpret, to ensure drivers keep their eyes on the road.

Screen position: reachability & glanceability
Consider the size and position of the display(s) in the car for reachability and glanceability.

Feedback of processes
Feedback should be obvious, so drivers need less time to understand the status of the system.

Follow standards
Following standards helps drivers to quickly understand how to use the system.

Disable distracting features while driving
Features that are not intended for use while driving should be disabled, to prevent distraction.

Reduce the time to complete tasks
Consider the number of inputs and whether inputs are interruptible.